KR970043462A - Control device of sewing machine - Google Patents

Control device of sewing machine Download PDF

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Publication number
KR970043462A
KR970043462A KR1019960045324A KR19960045324A KR970043462A KR 970043462 A KR970043462 A KR 970043462A KR 1019960045324 A KR1019960045324 A KR 1019960045324A KR 19960045324 A KR19960045324 A KR 19960045324A KR 970043462 A KR970043462 A KR 970043462A
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KR
South Korea
Prior art keywords
sewing machine
frequency
inverter
speed
deviation
Prior art date
Application number
KR1019960045324A
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Korean (ko)
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KR100426615B1 (en
Inventor
이쿠조 곤도
요시하루 히구치
가즈히사 이토
Original Assignee
야스이 요시히로
부라자고교 가부시기가이샤
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Publication of KR970043462A publication Critical patent/KR970043462A/en
Application granted granted Critical
Publication of KR100426615B1 publication Critical patent/KR100426615B1/en

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/14—Devices for changing speed or for reversing direction of rotation
    • D05B69/18—Devices for changing speed or for reversing direction of rotation electric, e.g. foot pedals

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명은, 유도전동기에 엔코더를 배설하지 않고 클로즈루프제어를 실현할 수 있는 재봉틀의 제어장치를 제공하는 것을 목적으로 한다.본 발명의 재봉틀의 제어장치는, 종래 장치와 마찬가지로, 유도전동기(12)를 구동하기 위하여 인버터를 구비하고, 제어수단(15)이, 이 인버터의 출력을 재봉틀의 실속도(實速度)가 속도지령장치로부터 지령된 목표속도로 되도록 제어하지만, 제어수단(15)이, 이 인버터제어를 실행할 때에는, 속도지령장치(20)로부터의 지령속도뿐만 아니고, 재봉틀의 침봉(針峰)의 위치 및 이동속도에 따른 검출신호를 발생하는 바늘위치검출기(18)로부터의 검출신호를 사용한다. 따라서, 본 발명에 의하면, 종래와 같이 유도전동기 (12)에 엔코더를 배설하지 않고, 제어수단(15)에 있어서, 엔코더를 사용한 클로즈루프제어와 대략 동일한 제어를 실행할 수 있다.It is an object of the present invention to provide a sewing machine control apparatus capable of realizing closed loop control without placing an encoder in an induction motor. The sewing machine control apparatus of the present invention, like the conventional apparatus, includes an induction motor 12. An inverter is provided to drive the controller, and the control means 15 controls the output of the inverter such that the actual speed of the sewing machine becomes the target speed commanded from the speed command device. When the inverter control is executed, not only the command speed from the speed command device 20 but also the detection signal from the needle position detector 18 which generates a detection signal according to the position and the moving speed of the needle bar of the sewing machine. use. Therefore, according to the present invention, the control means 15 can perform substantially the same control as the closed loop control using the encoder without providing the encoder in the induction motor 12 as in the prior art.

Description

재봉틀의 제어장치Control device of sewing machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도 1은 실시예의 공업용 봉제재봉틀의 개략 구성을 나타낸 사시도.BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows schematic structure of the industrial sewing material sewing frame of an Example.

Claims (4)

재봉틀을 구동하기 위한 유도전동기와, 이 유도전동기를 구동하기 위한 교류구동신호를 출력하는 인버터와, 재봉틀의 목표속도를 지령하는 속도지령장치와, 재봉틀의 침봉(針峰)의 위치 및 이동속도에 따른 검출신호를 발생하는 바늘위치검출기와, 이 바늘위치검출기로부터의 검출신호와, 상기 속도지령장치로부터 지령된 목표속도에 따라서, 재봉틀의 실속도(實速度)가 목표속도롤 되도록 상기 인버터를 제어하는 제어수단과, 를 구비한 것을 특징으로 하는 재봉틀의 제어장치.An induction motor for driving the sewing machine, an inverter for outputting an AC drive signal for driving the induction motor, a speed command device for commanding a target speed of the sewing machine, and a position and a moving speed of the needle bar of the sewing machine. The inverter is controlled so that the actual speed of the sewing machine rolls at the target speed in accordance with a needle position detector for generating a detection signal according to the detection signal, a detection signal from the needle position detector, and a target speed commanded from the speed command device. Control means for controlling the sewing machine, characterized in that provided with. 청구항 1에 있어서, 상기 제어수단은, 상기 바늘위치검출기로부터의 검출신호에 따라서 재봉틀의 실속도를 구하고, 이 실속도와 상기 목표속도와의 편차를 산출하는 편차산출수단과, 상기 목표속도에 따라서, 상기 인버터가 출력하는 교류구동신호의 기본주파수를 설정하는 기본주파수설정수단과, 이 산출된 기본주파수를, 상기 편차산출수단에서 산출된 실속도와 목표속도와의 편차에 따라서 보정하여, 상기 인버터의 출력주파수를 설정하는 출력주파수설정수단과, 이 출력주파수설정수단에 의하여 설정된 인버터의 출력주파수에 따라서, 상기 교류구동신호의 전압-주파수특성이 미리 설정된 소정특성으로 되도록, 상기 인버터의 출력전압을 설정하는 출력전압설정수단과, 를 구비하고, 상기, 인버터가 출력하는 교류구동신호가 상기 설정된 출력주파수ㆍ출력전압으로 되도록, 상기 인버터를 제어하는 것을 특징으로 하는 재봉틀의 제어장치.The method according to claim 1, wherein the control means, the deviation calculation means for obtaining the actual speed of the sewing machine in accordance with the detection signal from the needle position detector, calculating the deviation between the actual speed and the target speed, and in accordance with the target speed, Basic frequency setting means for setting a fundamental frequency of the AC drive signal output from the inverter, and correcting the calculated fundamental frequency according to the deviation between the actual speed and the target speed calculated by the deviation calculating means, and outputting the inverter. Output frequency setting means for setting the frequency and setting the output voltage of the inverter such that the voltage-frequency characteristic of the AC drive signal becomes a predetermined characteristic according to the output frequency of the inverter set by the output frequency setting means. An output voltage setting means and an alternating current drive signal output by the inverter A control device for a sewing machine, characterized in that the inverter is controlled so as to have a wave number and an output voltage. 청구항 2에 있어서, 상기 편차산출수단은, 상기 바늘위치검출기로부터의 검출신호에 따라서 재봉틀의 실속도에 대응한 상기 교류구동신호의 주파수를 산출하고, 이 산출한 주파수와 상기 기본주파수와의 주파수편차를, 상기 실속도와 상기 목표속도와의 편차로서 산출하고,상기 출력주파수설정수단은, 이 편차산출수단에서 산출된 주파수편차에 따라서 기본주파수를 보정하여, 상기 인버터의 출력주파수를 설정하는 것을 특징으로 하는 재봉틀의 제어장치.The said deviation calculating means calculates the frequency of the said AC drive signal corresponding to the actual speed of a sewing machine according to the detection signal from the said needle position detector, The frequency deviation between this calculated frequency and the said fundamental frequency. Is calculated as a deviation between the actual speed and the target speed, and the output frequency setting means corrects the fundamental frequency according to the frequency deviation calculated by the deviation calculating means to set the output frequency of the inverter. The control device of the sewing machine. 청구항 1~청구항 3중 어느 한 항에 있어서, 상기 속도지령장치는, 재봉틀에 배설된 밟음페달의 밟음량에 따라서 상기 목표속도를 지령하는 것을 특징으로 하는 재봉틀의 제어장치.The control device for a sewing machine according to any one of claims 1 to 3, wherein the speed command device commands the target speed according to the stepping amount of the step pedal disposed on the sewing machine.
KR1019960045324A 1995-12-08 1996-10-11 Control device of sewing machine KR100426615B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP95-320737 1995-12-08
JP7320737A JPH09155090A (en) 1995-12-08 1995-12-08 Controller for sewing machine

Publications (2)

Publication Number Publication Date
KR970043462A true KR970043462A (en) 1997-07-26
KR100426615B1 KR100426615B1 (en) 2004-09-07

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Application Number Title Priority Date Filing Date
KR1019960045324A KR100426615B1 (en) 1995-12-08 1996-10-11 Control device of sewing machine

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US (1) US5724904A (en)
JP (1) JPH09155090A (en)
KR (1) KR100426615B1 (en)
CN (1) CN1050397C (en)
TW (1) TW339378B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5318444B2 (en) * 2008-04-07 2013-10-16 Ｊｕｋｉ株式会社 Buttonhole sewing machine
JP6546040B2 (en) * 2015-08-25 2019-07-17 Juki株式会社 sewing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206288A (en) * 1981-06-11 1982-12-17 Matsushita Electric Ind Co Ltd Speed setting device for sewing machine
GB2114614B (en) * 1981-08-20 1985-05-15 Mitsubishi Electric Corp Device for driving sewing machine
KR850001706A (en) * 1983-08-17 1985-04-01 윌리암 에이취. 홀트스니더 Fastener assembly and manufacturing method
EP0201902B1 (en) * 1985-05-13 1990-01-31 Matsushita Electric Industrial Co., Ltd. Sewing machine with reference speed correction by dimensional ratio between motor- and armshaft-pulleys
KR910002380B1 (en) * 1987-08-08 1991-04-20 산요덴끼 가부시끼가이샤 Apparatus for making ice cream
MY106116A (en) * 1990-06-12 1995-03-31 Mitsui Chemicals Inc Ethylene/pentene-1 copolymer compositions and their use
JP2871200B2 (en) * 1991-07-17 1999-03-17 ブラザー工業株式会社 Control device for needle bar and hook drive sewing machine
JP2923934B2 (en) * 1992-02-06 1999-07-26 ブラザー工業株式会社 Embroidery sewing device and embroidery device
JPH07194167A (en) * 1993-12-28 1995-07-28 Juki Corp Motor drive device for sewing machine

Also Published As

Publication number Publication date
TW339378B (en) 1998-09-01
US5724904A (en) 1998-03-10
CN1050397C (en) 2000-03-15
JPH09155090A (en) 1997-06-17
CN1157865A (en) 1997-08-27
KR100426615B1 (en) 2004-09-07

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